IPA: /ˈkɛr.ləs/
KK: /ˈkɛr lɪs/
Not paying enough attention to what you are doing, which can lead to mistakes or accidents.
He made a careless mistake on the test that cost him points.
Comparative: more careless
Superlative: most careless
Careless → It is formed from "care" (from Old English *caru*, meaning worry or concern) and "-less" (meaning without). The word "careless" means without care or concern, indicating a lack of attention or caution.
Think of being 'without care' — 'care' means concern, and '-less' means without. This helps you remember that 'careless' describes someone who is not paying attention.